Numerical simulation of a bird impact on a composite aerodynamic brake wing of a high-speed train. (March 2015)

• Record Type: Journal Article
• Authors: Jianyong, Zuo; Xiaoyu, Zhu; Mengling, Wu
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 229:Number 3(2015:Mar.)
• Page Start: 223
• Page End: 236
• Publication Date: 2015-03
• Subjects: Aerodynamic brake wing -- arbitrary Lagrangian Eulerian -- bird strike -- fibre composite laminate -- finite element analysis; Railroads -- Periodicals; Personal rapid transit -- Periodicals; 625.1
• DOI: 10.1177/0954409713508109
• Languages: English
• ISSNs: 0954-4097

Abstract

Experimental bird strike tests were conducted in which a 2.6-kg dead chicken was projected at a speed of 500 km/h to hit a raised aerodynamic brake wing. The brake wing was fabricated with a sandwich of composite material as its skin and polymethacrylimide foam as its core. Pre-test numerical analyses of bird strikes were performed using the LS-Dyna solver code, an Arbitrary Lagrangian Eulerian model of the bird, and a Lagrangian model of the brake wing. The numerical and experimental results were well correlated, confirming the validity of the finite element model and calculation approach. Finally, bird strikes were conducted on a brake wing extended to 75° and 90° to determine the difference between the two conditions on the basis of effective wind-drag area. Impact, failure after impact and high strength at impact properties were investigated for a composite of carbon and glass fibre laminate.